Urothemis edwardsii
In 3 days ~40% in a week ~70%
Urothemis edwardsii, the blue basker, is a species of dragonfly in the family Libellulidae. It is found in Algeria, Angola, Benin, Botswana, Burkina Faso, Cameroon, Chad, the Democratic Republic of the Congo, Ivory Coast, Egypt, Gambia, Ghana, Guinea, Kenya, Liberia, Malawi, Mali, Mauritania, Mozambique, Namibia, Niger, Nigeria, Senegal, Sierra Leone, Somalia, South Africa, Sudan, Tanzania, Uganda, Zambia, Zimbabwe, and possibly Burundi. Its natural habitats are freshwater lakes, intermittent freshwater lakes, freshwater marshes, and intermittent freshwater marshes. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Ankarafantsika National Park | 🇲🇬 Madagascar | |
| 2 | uMkhuze Game Reserve | 🇿🇦 South Africa | |
| 3 | iSimangaliso Wetland Park | 🇿🇦 South Africa | |
| 4 | Moremi Game Reserve | 🇧🇼 Botswana | |
| 5 | Murchison Falls National Park | 🇺🇬 Uganda | |
| 6 | Kruger National Park | 🇿🇦 South Africa |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Antananarivo | 🇲🇬 Madagascar |
Possible
About 20% of wildlife watchers report a Blue Basker sighting in Antananarivo on a given day, based on 7 verified sightings from GBIF citizen-science data. It is the 45th most-seen of the 59 insects we can rate there. Over three days the chance rises to about 40%, and over a week to about 70%, if each day is a fresh chance.
March
In that month about 40% of wildlife watchers report a Blue Basker in Antananarivo on a given day, against under 5% in May–October and December–February, the lowest months. That is one of Antananarivo's wettest months, with about 300 mm of rain against 45 mm in September.
Between noon and 3 pm
Across all the parks we cover, that three-hour window holds the most Blue Basker sightings with a recorded time, and nearly all of them come between 6 am and 6 pm: it is a daytime animal.
Only Antananarivo, in our data
Antananarivo is the only city on Wallace's Line with enough records to rate Blue Basker sightings: about 20% of wildlife watchers there report one on a given day.
Same family: Libellulidae
The closest relatives of the Blue Basker that you can see in Antananarivo (family Libellulidae, Skimmers) are Broad Scarlet (about 50%), Southern Banded Groundling (about 50%) and Silver Widow (about 40%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Blue Basker is recorded against all the insects logged in Antananarivo (7 verified sightings), calibrated against known sighting rates. Figures are rounded to the nearest 10% because citizen-science data supports honest approximations, not decimals, and months with records from fewer than five people show "—". How it works.
